Measuring the Pulse of the Power Grid | Niclas Wetterstrand, Megger

Measuring the Pulse of the Power Grid | Niclas Wetterstrand, Megger

🎙 Niclas Wetterstrand 👥 556 📅 December 1, 2025 ⏱ 14 min 👁 113 📄 expert opinion 🧭 2026-08-16
Available in: English (current) Français

Keywords

power gridtestingmonitoringcircuit breakersrelay protection

Summary

In this interview, Niclas Wetterstrand, Global Industry Director for Protection at Megger, discusses the company’s role in testing and monitoring power grid assets. He highlights the importance of gaining insights into asset health to make informed decisions, especially given the challenges of grid aging and the energy transition. Wetterstrand explains innovations in online testing for circuit breakers, which allow measurements without taking equipment out of service, enabling fleet screening. He also discusses the emergence of low-power instrument transformers in high-voltage applications and the associated testing challenges. The conversation touches on the need for collaboration and new talent to address the massive electrification required for net-zero goals. Wetterstrand emphasizes the value of extending asset life through condition monitoring and avoiding costly unplanned outages. He shares observations from the CIGRE 2025 symposium in Montreal, noting the international participation and the focus on future technologies. The interview concludes with remarks on the importance of industry events for networking and knowledge exchange.

158 words

Critical Evaluation

Value of the Information & Strength of the Argument

The value of the information lies in the practical, industry-specific insights provided by an expert with over 30 years of experience. Wetterstrand’s explanations of online testing and low-power instrument transformers are clear and relevant, offering viewers a glimpse into current challenges and solutions in power grid maintenance. The argumentation is solid, based on professional experience and industry statistics, such as the 70% failure rate in operating mechanisms. However, the discussion is high-level and lacks detailed technical depth, making it more suitable for a general audience than for specialists.

Scientific Rigor, Source Quality, Title Accuracy

The scientific rigor is moderate; the content is based on expert opinion rather than peer-reviewed research. The sources cited are limited to company and event-related links, which are not academic references. The title accurately reflects the content, and the interview stays on topic. No public comments were provided for analysis.

153 words

Title / Content Match

The title accurately reflects the content, which focuses on measuring and monitoring power grid assets.

Quality & Reliability

7/10

The content is an expert interview with a senior industry professional, providing practical insights based on decades of experience. While not peer-reviewed, the information is grounded in established engineering practice and reflects current industry trends.

Key Moments

Cited Sources

Concurring Sources

  • CIGRE — International organization for electric power systems, aligns with the conference mentioned.

Contribution & Novelties

The interview provides a concise overview of current testing and monitoring practices in the power industry, with a focus on online testing and low-power instrument transformers. It offers practical insights from an industry expert, highlighting the importance of condition monitoring in grid reliability. While not groundbreaking, it serves as a useful update for professionals and interested laypersons.

Pour aller plus loin :

  • CIGRE — International council on large electric systems, relevant for grid technology discussions.
  • IEC 61850 — Standard for communication in substations, related to relay testing.
  • Rogowski coil — Principle behind low-power instrument transformers.

95 words

Radar Profile

The radar profile shows moderate scores across all dimensions, indicating a balanced but not highly technical or detailed content. The highest score is in reliability, reflecting the expert's credibility, while quantity and technical level are moderate, suitable for a general audience.

Reliability 7/10